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接尘作业1～2年发生矽肺，属何种矽肺

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既活血定痛，祛风利湿，又清热解毒，化痰止咳，泻下通便

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l/10

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Compared with Arizona's Pima Indian, Pima diet in Mexico remains healthy because ______.

A. they are far away from America
B. they are thin
C. they lives comfortably than those Arizona's Pima
D. they don't follow Americans to eat junk food

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定金合同为诺成合同。()

A. 正确
B. 错误

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